从uart发送字符错误

ChangetoRight，现在，您正在发送字符串地址的低字节。



      以下为原文

    Change
    WriteUart("1");
to
    WriteUart('1');


 
Right now, you are sending the low byte of the address of the string.
 

注意，这些问题应该在DSPIC3F主题论坛中，而不是在MPLABX论坛中，因为它们与IDE无关。



      以下为原文

    Note, these questions should be in the dsPIC33F Topics forum, not here in the MPLABX forum, as they have nothing to do with the IDE.
 

我改变了，但我把错误字符



      以下为原文

    I change that but i'm taking wrong characters unspecified characters

改为发送0x55，并观察范围内的TX引脚。（0x55＝0B01010101，因此您将看到波特率的一半的方波）。



      以下为原文

    Change it to send 0x55 instead, and observe the TX pin with a scope.
(0x55 = 0b01010101, so you will see a square wave at half the baud rate).
 

我也注意到，如果我只发送一次内，而它发送连续。OSCCon寄存器能影响我的读写吗？



      以下为原文

    Also i noticed that if i will send  only once inside while, it sends continuoesly. Can osccon registers influence my write and read? 

你把数据发送到哪里？个人电脑？检查你的GND连接。



      以下为原文

    To where do you send your data ? PC ?
Check your GND connection.

转换到



      以下为原文

   
Change
#pragma config FWDTEN = ON // Watchdog Timer Enable (Watchdog timer always enabled)
to
#pragma config FWDTEN = OFF // Watchdog Timer Disable

是的，我正在向PC发送数据。我怎样才能检查我的OSCCon寄存器是正确的？我用PLL外晶体



      以下为原文

    Yes i'm sending data to pc. How can i Check that my osccon registers are right?
I'm using external crystal with pll

 
 
 
 bit 15 Unimplemented: Read as ‘0’
 
 
bit 14-12 COSC<2:0>: Current Oscillator Selection bits (read-only)
 
111 = Fast RC oscillator (FRC) with Divide-by-N
 
110 = Fast RC oscillator (FRC) with Divide-by-16
 
101 = Low-Power RC oscillator (LPRC)
 
100 = Secondary oscillator (Sosc)
 
011 = Primary oscillator (XT, HS, EC) with PLL 010 = Primary oscillator (XT, HS, EC)
 
001 = Fast RC Oscillator (FRC) with Divide-by-N and PLL (FRCDIVN + PLL)
 
000 = Fast RC oscillator (FRC)
 
 
bit 11 Unimplemented: Read as ‘0’ bit
 
 
 
bit 10-8 NOSC<2:0>: New Oscillator Selection bits(2)
 
111 = Fast RC oscillator (FRC) with Divide-by-N
 
110 = Fast RC oscillator (FRC) with Divide-by-16
 
101 = Low-Power RC oscillator (LPRC) 100 = Secondary oscillator (Sosc)
 
011 = Primary oscillator (XT, HS, EC) with PLL 010 = Primary oscillator (XT, HS, EC)
 
001 = Fast RC Oscillator (FRC) with Divide-by-N and PLL (FRCDIVN + PLL)
 
000 = Fast RC oscillator (FRC)
 
bit 7 CLKLOCK: Clock Lock Enable bit
 
1 = If (FCKSM0 = 1), then clock and PLL configurations are locked
If (FCKSM0 = 0), then clock and PLL configurations may be modified
 
0 = Clock and PLL selections are not locked, configurations may be modified 
 
bit 6 Unimplemented: Read as ‘0’
 
bit 5 LOCK: PLL Lock Status bit (read-only)
 
1 = Indicates that PLL is in lock, or PLL start-up timer is satisfied
0 = Indicates that PLL is out of lock, start-up timer is in progress or PLL is disabled
 
bit4 Unimplemented: Read as ‘0’ 
 
bit 3 CF: Clock Fail Detect bit (read/clear by application)
1 = FSCM has detected clock failure
0 = FSCM has not detected clock failure
 
bit 2 Unimplemented: Read as ‘0’
 
 
 
bit 1 LPOSCEN: Secondary (LP) Oscillator Enable bit
 
1 = Enable secondary oscillator
0 = Disable secondary oscillator bit 0 OSWEN: Oscillator Switch Enable
 
bit 0 OSWEN: Oscillator Switch Enable bit
1= Request oscillator switch to selection specified by NOSC<2:0> bits
0 = Oscillator switch is complete
 
 
 

你有范围吗？你似乎忽略了我的建议。



      以下为原文

    Do you have a scope?
You seem to have ignored my suggestions.
 

你有范围吗？你似乎忽略了我的建议。对不起，我现在没有。@ QuiBi仍然缺少构建这方面的主要知识。这是你在PIC中设置的第一件事，让它起作用吗？例如，语法和一些主要的寄存器。我说的对吗？在数据表中，哪些是我需要设置的主要寄存器？系统控制寄存器映射？



      以下为原文

   
Do you have a scope?
 
You seem to have ignored my suggestions.
Sorry i dont have right now.
 
@qɥb i'm still missing main knowledge for building this.
Which is the first thing which you need to set in pic, to make it work?
Example #pragma and some main registers. Am i right? 
In datasheet which is the main registers which i need to set?
SYSTEM CONTROL REGISTER MAP?
 

嗨，在你的程序中制作LED闪光灯代码，直到你了解振荡器、锁相环和计时器的工作原理。虽然LED闪烁可能看起来愚蠢的琐碎，但是LED闪光灯每秒钟精确地做一次闪光是一个合理的练习，并且重要的是检查频率和除法器的正确设置，以及功能。当你用示波器或逻辑分析仪来切换定时测量或诊断的I/O管脚时，基本上是相同的，只有一个更宽的频率范围可以观察到，直到振荡器和时序以一种你理解的方式工作，没有任何意义。搞乱UART通信。迈西尔



      以下为原文

    Hi,
Make  LED flashing code in your program, until you understand how Oscillators, PLL and Timers work.
 
While LED flashing may seem stupidly trivial,
making a LED flash exactly once every second is a reasonable exercise, and important check that frequencies and dividers are set up correctly, and function the way you intend.
 
It is essentially the same happening when toggling a I/O pin for timing measurements or diagnostics using oscilloscope or logic analyzer, there is just a wider range of frequencies possible to observe.
 
Until oscillators and timing work in a way you understand, there is no point in messing with UART communication.
 
   Mysil